import usb_hid

https://stackoverflow.com/questions/36750287/two-byte-report-count-for-hid-report-descriptor

absolute_mouse = usb_hid.Device( report_descriptor=bytes( # Absolute mouse (0x05, 0x01) # Usage Page (Generic Desktop) + (0x09, 0x02) # Usage (Mouse) + (0xA1, 0x01) # Collection (Application) + (0x09, 0x01) # Usage (Pointer) + (0xA1, 0x00) # Collection (Physical) + (0x85, 0x0B) # Report ID [11 is SET at RUNTIME] # Buttons + (0x05, 0x09) # Usage Page (Button) + (0x19, 0x01) # Usage Minimum (0x01) + (0x29, 0x05) # Usage Maximum (0x05) + (0x15, 0x00) # Logical Minimum (0) + (0x25, 0x01) # Logical Maximum (1) + (0x95, 0x05) # Report Count (5) + (0x75, 0x01) # Report Size (1) + (0x81, 0x02) # Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) + (0x75, 0x03) # Report Size (3) + (0x95, 0x01) # Report Count (1) + (0x81, 0x03) # Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) # Movement + (0x05, 0x01) # Usage Page (Generic Desktop Ctrls) + (0x09, 0x30) # Usage (X) + (0x09, 0x31) # Usage (Y)
+ (0x15, 0x00) # LOGICAL_MINIMUM (0) ; Note: 0x15 = 1 Byte; 0x16 = 2 Byte; 0x17 = 4 Byte + (0x26, 0xFF, 0x7F) # LOGICAL_MAXIMUM (32767) ; Note: 0x25 = 1 Byte, 0x26 = 2 Byte; 0x27 = 4 Byte Report #+ (0x35, 0x00) # Physical Minimum (0) #+ (0x46, 0xff, 0x7f) # Physical Maximum (32767) + (0x75, 0x10) # REPORT_SIZE (16) + (0x95, 0x02) # REPORT_COUNT (2) + (0x81, 0x02) # Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position) # Wheel + (0x09, 0x38) # Usage (Wheel) + (0x15, 0x81) # Logical Minimum (-127) + (0x25, 0x7F) # Logical Maximum (127) #+ (0x35, 0x81) # Physical Minimum (same as logical) #+ (0x45, 0x7f) # Physical Maximum (same as logical) + (0x75, 0x08) # Report Size (8) + (0x95, 0x01) # Report Count (1) + (0x81, 0x06) # Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position) + (0xC0,) # End Collection
+ (0xC0,) # End Collection ), usage_page=1, usage=2, in_report_lengths=(6,), # Number of bytes in the send report = 1 byte for buttons, 2 bytes for x, 2 bytes for y, 1 byte for wheel out_report_lengths=(0,), report_ids=(11,), )

usb_hid.enable((usb_hid.Device.KEYBOARD,), boot_device=1) usb_hid.enable((absolute_mouse,), boot_device=0)